On the back end, our immediate objective is to accelerate on the revamp of the architecture, which implies the rewrite of features that are particularly complex. To this end, we are opening a position of Senior Back-end Engineer, whose missions are the following:

• Develop new services in TypeScript
• Implement performant algorithms on large and/or complex sets of data
• Participate, with the Head of Technology, in the technical design and architecture of the new services
• Assist the engineering team with challenging algorithmic problems

Some examples of engineering tasks that would fit this position in particular:

• Design the compute engine of our KPI service, which must allow for arbitrary formulas on time series and for the reliable updates of thousands of data points at once
• Implement the algorithm to efficiently fetch the routines instances which are to be scheduled on a given date range
• Design the data pipeline to compute an aggregated Lean Score, which would ingest thousands of events from the product
• Attempt to optimize queries of slow endpoints, then suggest a technical redesign if required

About Fabriq

Today, about 1 in 6 jobs is in the manufacturing sector, but a vast majority of factories provide outdated tools (paper, whiteboard, spoken voice) to the shop floor. This leads to low operational efficiency and low workforce engagement.
Our mission is to empower and engage this workforce across Europe and the world. We aim to bridge the technological divides and contribute to industrial re-shoring. This is why we are building fabriq, an intuitive, shopfloor-ready app (web and mobile) to:

• Save time and solve operational issues faster 🏃‍♀️
• Collaborate on complex issues 🤝
• Build and use an operational knowledge base 📚
• Track performance and detect issues early 📊

Fabriq was founded in 2019 by two seasoned entrepreneurs, Octave Lapeyronie and François Déchelette. It is generating very good traction on its market and is currently live on 150+ production sites in 23 countries. A Series A was closed in May 2022.

The stack

The Fabriq web application is a typical single-page-application, in Vue.js, backed by a REST API.
On the back end, the REST API is historically implemented with a Django server, running on AWS. We are however in the process of revamping the stack and the infrastructure. Our goal is to implement services with TypeScript and Serverless technologies.
Specifically, the new stack relies on Cloudflare Workers (with Deno locally) and Fauna. We are on the bleeding edge, and frequently have access to beta features from both Cloudflare and Fauna. We made this bet on Serverless in order to have top performance all over the world, minimize operations, and provide a great developer experience.
We are also big on observability. We heavily use Honeycomb and Sentry, which are game changers to understand what goes on at scale.
Our coding style in TypeScript is inspired from Data Oriented Programming.

To apply for this job, you must have:

• A strong experience as a back-end software engineer
• A strong experience in designing complex and fast algorithms
• A significant knowledge of algorithms and data structures
• Some knowledge of agile and lean
• The ability to share your knowledge
• The ability to make others better
• The ability to work in English

We also appreciate if you have any of the following:

• Some familiarity with the software craftsmanship’s culture
• A strong experience working with JavaScript or TypeScript on the back-end
• Some familiarity with Data Oriented Programming
• If you fit these requirements, and if you are curious, autonomous and eager to collaborate, we want to work with you!

Screening - 15 to 30 min

• Goal: test the compatibility between the desire of the candidate and the need of Fabriq
• Presentation of the company, current issues, work environment
• Gathering of information on the candidate’s availability, desires and salary
• Examples of questions that may be asked: Why do you want to leave your current company? What would make you want to join us? What would not make you want to join us? Do you have any career development plans? And how can Fabriq help in your career?

Technical test - 60 to 90 min

• Goal: test the candidate’s technical skills
• Before the meeting: the candidate selects products and screens on these products that he/she likes
• During the meeting: the candidate explains his/her choices and then implements on of selected screens during a pair programming session

WHO interview - 30min to 60min

• Goal : test the person’s ability to integrate into the team, to work in a team, to explain his/her knowledge
• Examples of questions that may be asked: How would you explain domain driven design to someone with no technical knowledge? Imagine you don’t really appreciate the way your coworker work. How do you go about it? The team can’t agree on a technical solution. Tensions rise. A conflict is emerging. What do you do? What do you do to find out the strengths and weaknesses of the team you work with? And to help them improve the way they work?

Meet the CEO - 30 minutes

• Goal: Present the company’s vision, the candidate shares his/her final questions and salary expectations